If it's a private course then it'd be good to know some stuff because then they can move on and cover more stuff.

If it's a group of you and other people you don't know it's likely at least one person in the group won't have a clue at what's going on and the whole group will be slowed down to their pace. In which case it's not going to hurt and may even help a little but could also be kind of a waste of money.

Hi. I am taking an Introduction to Rock Climbing 2- day course with a mountain guide. Would it be helpful if I obtained some practice at a climbing gym beforehand?

"with a mountain guide" So that sounds a bit like it will be "in the mountains"? If so, some gym course might not be helpful. While gym climbing and alpine climbing are related (you are climbing up a more or less steep "something" while using a rope) they are quite different when it comes to rope work and safety techniques.

I would suggest to just ask your guide how he plans to do the course and if he would reccomended that you learn some stuff beforehand or not.

"with a mountain guide" So that sounds a bit like it will be "in the mountains"? If so, some gym course might not be helpful. While gym climbing and alpine climbing are related (you are climbing up a more or less steep "something" while using a rope) they are quite different when it comes to rope work and safety techniques.

I would suggest to just ask your guide how he plans to do the course and if he would reccomended that you learn some stuff beforehand or not.

qwert

qwert, do you think "Introduction to Rockclimbing" would be alpine climbing in the mountains? If it is, I'll sign up ;)

"with a mountain guide" So that sounds a bit like it will be "in the mountains"? If so, some gym course might not be helpful. While gym climbing and alpine climbing are related (you are climbing up a more or less steep "something" while using a rope) they are quite different when it comes to rope work and safety techniques.

I would suggest to just ask your guide how he plans to do the course and if he would reccomended that you learn some stuff beforehand or not.

qwert

qwert, do you think "Introduction to Rockclimbing" would be alpine climbing in the mountains? If it is, I'll sign up ;)

I always find it hilarious when people call gym climbing "Mountain Climbing"